WBS Power has sold its Project Jupiter scheme in Brandenburg to Prime Capital, acting on behalf of its Prime Green Energy Infrastructure Fund II, the companies said.
The project combines a 500-megawatt (MW) / 2,000-megawatt-hour (MWh) battery energy storage system with up to 150 MWp of solar capacity on a former military airfield. WBS Power described it as the largest co-located PV and storage development currently planned in Germany.
Prime Capital said the acquisition will be completed via Jupiter JVCo S.à r.l. and remains subject to the project reaching ready-to-build status. Construction is expected to begin in late 2026 or early 2027, with total investment estimated at €500 million. Both the solar and battery components will share a single grid connection to a 380-kilovolt line operated by transmission system operator 50Hertz.
The parties also plan to co-locate a hyperscale data centre with a planned capacity of up to 500 MW.
“Project Jupiter demonstrates our commitment to innovation and scale,” said WBS Power Group chief executive Maciej Marcjanik.
Dr. Mathias Bimberg, head of infrastructure at Prime Capital, said: “Germany is back! This acquisition strengthens the country’s critical infrastructure by combining renewable energy and digital capacity at an unprecedented scale.”
Alexander Enrique Kuhn, managing partner at advisory firm Capcora, said: “We are proud to have supported WBS Power in structuring the M&A process alongside PwC for this exceptional project.”
Andrzej Rusniak, director at PwC Poland, said the transaction shows how cooperation can support the transition. “This transaction exemplifies how strategic partnerships can accelerate the energy transition while creating long-term value,” he said.
